What is SQL used for in a relational database?

What is SQL used for in a relational database?

• A. Visualizing data
• B. Querying, inserting, updating, and managing data
• C. Storing data in tables with relations
• D. Access control only

Answer: (B)

SQL is the language for interacting with a relational database to manage the data it contains. It’s used to query data (retrieve the rows you need), insert new data, update existing records, and manage both the data and the schema (for example, creating or altering tables) and permissions. This covers the practical data operations you perform daily, rather than just visualizing data or simply storing it—visualization is separate and depends on the data retrieved by SQL, while the actual storage is handled by the database system.

SQL is the language for interacting with a relational database to manage the data it contains. It’s used to query data (retrieve the rows you need), insert new data, update existing records, and manage both the data and the schema (for example, creating or altering tables) and permissions. This covers the practical data operations you perform daily, rather than just visualizing data or simply storing it—visualization is separate and depends on the data retrieved by SQL, while the actual storage is handled by the database system.